Photos in this series consist of photographs of M.Y. Williams' family. Photographs have been assigned series UBC 49.1, and 49.1/1 to 49.1/147 contain both prints and small prints of the Wiliams family. In this series are photos by WL Uglow taken in 1922; amongst Uglow's photographs, there are images of geological features, campsites, prospecting, logging, and BC towns such as Bakerville, Nookta village and the Tofino "life-saving station." Photos of people include CS Evans, Anthony Watson and C.O. Swanson. There is also a photo taken in Japan of Professor W.J. Head of Wisconsin. These photos can be found from 49.1/148 to 49.1/249. A group photo dated 1947 features Okalitch, Gunning, Swanson, Williams, Warren and Weir (49.1/251). There are also wildlife photos courtesy of the Canadian National Railway and photos of fossils and diatoms. The photo of dinosaur bones in UBC's Department of Geology is dated 1950. These photos are in boxes 52 (1-127) & 53 (128-269).

An itemized inventory of the glass slides is available on the last two pages of the finding aid. The glass slides are located in the vault. (49.1/270 to 382).